PSI - Issue 78

Manuela Scamardo et al. / Procedia Structural Integrity 78 (2026) 465–472

469

Fig. 4. Pull-out of the anchor and concrete cone failure of the overlay.

Fig. 5. Load-displacement of monotonic (left) and cyclic (right) tests.

(a)

(b)

(c)

Fig. 6. Peak load vs slip for the (a) first, (b) second and (c) third cycle.

3. Code provisions Various international design codes and guidelines provide methodologies for assessing the shear resistance associated to the interface, often differing in their underlying assumptions and empirical formulations. The core formulation proposed by the old Eurocode 2 (European Committee for Standardization, 2014) for the design shear stress resistance, τ Rd , is based on a combination of cohesion and friction :

(1)

0 5 f(sin cos) . f       + 

= + + cf



Rd

ctd

n

yd

cd